Answer:
I think it should be C and D both.
Answer:
The insecticide must have contain strong, active chemicals that are poisonous and harmful to owls which resulted in their demise while on the other hand, grass hopper or mice may be resistant/ or tolerant to that chemicals that's why it don't have effect on them.
Explanation:
You can be infected with a virus & not even know it & that is true
The synaptic pruning during childhood results in a reduction in density of nerve cells, thus increasing the brain's efficiency.
<span>Synaptic pruning, which can include both axon and dendrite pruning, is the process of synapse elimination that occurs usually in early childhood. It is thought that this is the brain’s way of removing connections in the brain that are no longer needed and a way of maintaining more efficient brain function.</span>